A scheme of atmospheric regions. III - Chromospheres of emission-line stars. 1 - Formation of H alpha emission line cores in T Tauri-type stars

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

13

Chromosphere, H Alpha Line, Stellar Atmospheres, Stellar Mass Ejection, Stellar Spectra, T Tauri Stars, Atmospheric Models, Density Distribution, Emission Spectra, Photosphere, Stellar Coronas, Stellar Temperature, Velocity Distribution

Scientific paper

We focus on the effects of the velocity field, and changed density distribution, accompanying our model of a mass-flux on an expanded version of our earlier, static, model of Hα emission from a low-lying chromosphere. Our aim lies on understanding the variability, between "peculiar" and normal stars, and for a given star, in Hα emission and other allied characteristics. We find that the velocity field alone, ignoring effects of changed density distribution, does not suffice to remove the contradictions earlier found on the total Hα emission and large central self-reversal of the profile. Including the effects of changed density distribution introduces a wide variety of possible models, depending upon the size of the mass-flux. A better resolution of the contradictions requires consideration of extended, not only low-lying, chromospheres-coronas-postcoronas.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A scheme of atmospheric regions. III - Chromospheres of emission-line stars. 1 - Formation of H alpha emission line cores in T Tauri-type stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A scheme of atmospheric regions. III - Chromospheres of emission-line stars. 1 - Formation of H alpha emission line cores in T Tauri-type stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A scheme of atmospheric regions. III - Chromospheres of emission-line stars. 1 - Formation of H alpha emission line cores in T Tauri-type stars will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-802857

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.